php - 删除所有数字索引以仅具有关联数组

Question

如果在发出 print_r() 语句后我有这样的数组:

//print_r($theArray)
array (size=5)
  0 => 
    array (size=1)
      'Animal' => string 'Dog' (length=3)

  1 => 
    array (size=1)
      'House' => string 'white house' (length=11)

  2 =>
    array (size=1)
      'Human' =>  
         array (size=3)
           'Africans' => string 'Nigroids' (length=8)
           'Europeans' => string 'Caucasoids' (length=8)
           'Asians' => string 'Mugoloids' (length=8)

我怎样才能删除所有数字索引，使上面的数组变成

array(
     'Animal' => string 'Dog' (length=3),
     'House' => string 'white house' (length=11),
     'Human' =>  
         array (size=3)
           'Africans' => string 'Nigroids' (length=8),
           'Europeans' => string 'Caucasoids' (length=8),
           'Asians' => string 'Mugoloids' (length=8)
    )

有什么帮助吗？

Answer 1

一个foreach就够了

$new = array();
foreach($array as $arr) 
       $new  =  $new + $arr;
 print_r($new);